<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <script src="https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.js"></script>
    <title>什么事模版语法</title>
</head>

<body>

    <div id="app">
        <span>{{ message }}</span>
    </div>

    <script>
        let config = {
        el: '#app',
        data: {
            message: '一个简单的vue实例'
            }
        }
        let vm = new Vue(config)

        // 让message2秒后
        setTimeout(() => {
            vm.message = '我变了'
        }, 2000);
    </script>
</body>

</html>